Пошаговое объяснение:
16/7×17/6=272/42
7/4×2/7=1/2
272/42-1/2=272/42-21/42=251/42;
16/7×2/3=32/21
251/42+32/21=251/41+ 64/42=315/42=45/6=7 1/3
Пошаговое объяснение:
16/7×17/6=272/42
7/4×2/7=1/2
272/42-1/2=272/42-21/42=251/42;
16/7×2/3=32/21
251/42+32/21=251/41+ 64/42=315/42=45/6=7 1/3